Braking system and braking control method in parking

Patent metadata

Field	Value
Publication number	US-9592798-B2
Application number	US-201514723455-A
Country	US
Kind code	B2
Filing date	May 28, 2015
Priority date	May 30, 2014
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

Disclosed herein is a brake system including a main brake applying braking force to a wheel of a vehicle when the vehicle travels, a parking brake applying braking force to the wheel of the vehicle when the vehicle is parked, and a parking brake controller operating the main brake when the parked vehicle is sensed to move above a predetermined reference value and stopping the operation of the main brake after increasing locking force of the parking brake when the movement of the vehicle is stopped according to the operation of the main brake.

First claim

What is claimed is:

1. A brake system comprising:
a main brake applying braking force to a wheel of a vehicle when the vehicle travels;
a parking brake applying braking force to the wheel of the vehicle when the vehicle is parked; and
a parking brake controller configured to operate the main brake when the parked vehicle is sensed to move above a predetermined reference value and stop the operation of the main brake after increasing locking force of the parking brake when the movement of the vehicle is stopped according to the operation of the main brake,
wherein the parking brake controller is configured to determine an inclination of the parked vehicle; warn, when the inclination exceeds a predetermined reference value, a driver about the same; and receive an instruction to stop the operation of the main brake from a driver or stopping the operation of the main brake after elapse of a predetermined reference time after the warning.

2. The brake system according to claim 1 , wherein the parking brake controller is configured to integrally control the main brake and the parking brake.

3. The brake system according to claim 1 , wherein the parking brake is an electromechanical brake which increases the locking force of the parking brake by decelerating through a gear and generating the braking force of the vehicle.

4. A brake control method for parking, comprising:
identifying a locked state of a parking brake or a parked state of a vehicle, the parking brake applying braking force to a wheel of the vehicle when the vehicle is parked;
monitoring movement of the vehicle;
operating a main brake, which applies braking force to the wheel of the vehicle when the vehicle travels, when the vehicle is sensed to move above a predetermined reference value;
increasing locking force of the parking brake when the movement of the vehicle is stopped according to the operation of the main brake;
stopping the operation of the main brake;
after the increasing locking force of the parking brake, determining an inclination of the parked vehicle;
warning, when the inclination exceeds a predetermined reference value, a driver about the same; and
receiving an instruction to stop the operation of the main brake from a driver or stopping the operation of the main brake after elapse of a predetermined reference time after the warning.

5. The brake control method according to claim 4 , wherein the operating the main brake comprises controlling, by an active safety device, the main brake when the vehicle is sensed to move above the predetermined reference value.

6. The brake control method according to claim 4 , wherein the increasing locking force of the parking brake is performed in a manner of increasing a value of current supplied to a brake motor provided in the parking brake.

7. The brake control method according to claim 4 , wherein the monitoring movement of the vehicle determines the movement of the vehicle from a value sensed by a vehicle speed sensor installed to the vehicle.

8. The brake control method according to claim 4 , wherein the monitoring movement of the vehicle determines the movement of the vehicle from a value sensed by a gyro sensor or an acceleration sensor.

9. The brake control method according to claim 4 , wherein the parking brake and the main brake are integrally controlled by a parking brake controller.

10. A brake control method for parking, comprising:
identifying a locked state of a parking brake or a parked state of a vehicle;
monitoring movement of the vehicle;
operating a main brake when the vehicle is sensed to move above a predetermined reference value;
increasing locking force of the parking brake when the movement of the vehicle is stopped according to the operation of the main brake;
stopping the operation of the main brake;
after the increasing locking force of the parking brake;
determining an inclination of the parked vehicle;
warning, when the inclination exceeds a predetermined reference value, a driver about the same; and
receiving an instruction to stop the operation of the main brake from a driver or stopping the operation of the main brake after elapse of a predetermined reference time after the warning.

11. The brake control method of claim 10 , wherein the operating a main brake is performed through an active safety device for controlling the main brake.

12. The brake control method of claim 10 , wherein the increasing locking force of the parking brake is performed in a manner of increasing a value of current supplied to a brake motor provided in the parking brake.

13. The brake control method of claim 10 , wherein the monitoring movement of the vehicle determines the movement of the vehicle from a value sensed by a vehicle speed sensor installed to the vehicle.

14. The brake control method according to claim 10 , wherein the monitoring movement of the vehicle determines the movement of the vehicle from a value sensed by a gyro sensor or an acceleration sensor.

15. The brake control method of claim 10 , wherein the parking brake and the main brake are integrally controlled by a parking brake controller.

Assignees

• Mando Corp

Inventors

• Lee Chan Won

Classifications

• B60T2201/06

  Hill holder; Start aid systems on inclined road · CPC title

• B60T13/741

  acting on an ultimate actuator · CPC title

• B60T13/662

  characterised by specified functions of the control system components · CPC title

• B60T13/588

  both fluid and mechanical assistance or drive · CPC title

• B60T7/12 Primary

  for automatic initiation; for initiation not subject to will of driver or passenger {(limiting speed of vehicles other than rail vehicles B60K31/00)} · CPC title